Algodoo

This is just a random concept I thought of randomly, Enjoy
I imagine him being that nice kid who gets along with basically everyone (except the noble gases, they're too narcissistic)
his height is a touchy subject as he's the shortest out of everyone, and sometimes he can get mad at insignificant things, but usually he's optimistic,
empathetic, and genuine to many people. He has a lot of friends from all groups, alkali metals, transition metals, halogens, whatever.